"Racism, pollution and the rest of it are themselves very close to extinction."

"Sometimes I think we're alone. Sometimes I think we're not. In either case, the thought is staggering."

"Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment."

"Humanity is acquiring all the right technology for all the wrong reasons."

"Dare to be naive."

"Now there is one outstandingly important fact regarding Spaceship Earth, and that is that no instruction book came with it."

"Nothing is so frequent as to mistake an ordinary human gift for a special and extraordinary endowment."

"I can be changed by what happens to me. But I refuse to be reduced by it."

"The only thing that saves us from the bureaucracy is its inefficiency."

"Here's some words of wisdom sprayed painted on a wall in Berkeley:"

"Having a family is like having a bowling alley installed in your brain."

"There is a way in which the collective knowledge of mankind expresses itself, for the finite individual, through mere daily living... a way in which life itself is sheer knowing."